Need Help With Java Program

Upgrade and extend the programs Draw.java and DrawCanvas.java used in the class to enable drawing of multiple shapes as follows:

1.Replace and upgrade all the AWT components used in the programs to the corresponding Swing components including Frame, Button, Label, Choice, and Panel . 2.Enable drawing of multiple shapes on the canvasAdd a JList to the left of the canvas to show the list of shapes that are currently drawn on the canvas. Each entry in the list should contain the name of the shape and its x and y coordinates. The list should be updated when a new shape is added on the canvas.

3.Add a JButton with the label Remove Shape below the list of shapes Complete the program so that an existing shape can be removed by selecting the shape in the list first and then clickingon the remove button. The list and the canvas should be updated accordingly.

Draw.java

// Import Core Java packages import java.awt.*; import java.awt.event.*; public class Draw extends Frame implements ActionListener, ItemListener { // Initial Frame size static final int WIDTH = 400; // frame width static final int HEIGHT = 300; // frame height // Color choices static final String COLOR_NAMES[] = {"None", "Red", "Blue", "Green"}; static final Color COLORS[] = {null, Color.red, Color.blue, Color.green}; // Button control Button circle; Button roundRec; Button threeDRec; // Color choice box Choice colorChoice; // the canvas DrawCanvas canvas; /** * Constructor */ public Draw() { super("Java Draw"); setLayout(new BorderLayout()); // create panel for controls Panel topPanel = new Panel(new GridLayout(2, 1)); add(topPanel, BorderLayout.NORTH); // create button control Panel buttonPanel = new Panel(new FlowLayout(FlowLayout.LEFT)); topPanel.add(buttonPanel); circle = new Button("Circle"); buttonPanel.add(circle); roundRec = new Button("Rounded Rectangle"); buttonPanel.add(roundRec); threeDRec = new Button("3D Rectangle"); buttonPanel.add(threeDRec); // add button listener circle.addActionListener(this); roundRec.addActionListener(this); threeDRec.addActionListener(this); // create panel for color choices Panel colorPanel = new Panel(new FlowLayout(FlowLayout.LEFT)); topPanel.add(colorPanel); Label label = new Label("Filled Color:"); colorPanel.add(label); colorChoice = new Choice(); for(int i=0; i 
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DrawCanvas.java
 
// Import Core Java packages import java.awt.*; import java.awt.event.*; public class DrawCanvas extends Canvas implements MouseListener, MouseMotionListener { // Constants for shapes public static final int CIRCLE = 1; public static final int ROUNDED_RECTANGLE = 2; public static final int RECTANGLE_3D = 3; // Coordinates of points to draw private int x1, y1, x2, y2; // shape to draw private int shape = CIRCLE; /** * Method to set the shape */ public void setShape(int shape) { this.shape = shape; } // filled color private Color filledColor = null; /** * Method to set filled color */ public void setFilledColor(Color color) { filledColor = color; } /** * Constructor */ public DrawCanvas() { addMouseListener(this); addMouseMotionListener(this); } // end of constructor /** * painting the component */ public void paint(Graphics g) { // the drawing area int x, y, width, height; // determine the upper-left corner of bounding rectangle x = Math.min(x1, x2); y = Math.min(y1, y2); // determine the width and height of bounding rectangle width = Math.abs(x1 - x2); height = Math.abs(y1 - y2); if(filledColor != null) g.setColor(filledColor); switch (shape) { case ROUNDED_RECTANGLE : if(filledColor == null) g.drawRoundRect(x, y, width, height, width/4, height/4); else g.fillRoundRect(x, y, width, height, width/4, height/4); break; case CIRCLE : int diameter = Math.max(width, height); if(filledColor == null) g.drawOval(x, y, diameter, diameter); else g.fillOval(x, y, diameter, diameter); break; case RECTANGLE_3D : if(filledColor == null) g.draw3DRect(x, y, width, height, true); else g.fill3DRect(x, y, width, height, true); break; } } /** * Implementing MouseListener */ public void mousePressed(MouseEvent event) { x1 = event.getX(); y1 = event.getY(); } public void mouseReleased(MouseEvent event) { x2 = event.getX(); y2 = event.getY(); repaint(); } public void mouseClicked(MouseEvent e) {} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} /** * Implementing MouseMotionListener */ public void mouseDragged(MouseEvent event) { x2 = event.getX(); y2 = event.getY(); repaint(); } public void mouseMoved(MouseEvent e) {} }